Project-Based Teaching of “Chemical Properties of Metals” in Junior High School Chemistry: I Etched the Class Emblem for Class
ZHANG Hui1**, WANG Qin-Jian2, LIU Yu-Rong3
1. Zhengzhou Guan Cheng Hui Nationality District Education and Teaching Research Center, Zhengzhou 450000, China; 2. Zhengzhou Hui Min Junior High School, Zhengzhou 450000, China; 3. School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
Abstract Taking “etching the school emblem for my class” as the main thread,this paper explores the properties of reactions between metals and oxygen, metals and acid, metals and compound solutions through the process of using acid washing methods to remove impurities from metal surfaces, chooses the appropriate corrosive solutions, and etches the class emblem by hand, etc. During this process, a variety of student activities are designed to allow the students to personally etch the class emblem, which is beneficial for stimulating students’ sustained learning activities, enhancing their key abilities in mastering the study of chemistry, and cultivating their innovative and practical abilities.
ZHANG Hui, WANG Qin-Jian, LIU Yu-Rong. Project-Based Teaching of “Chemical Properties of Metals” in Junior High School Chemistry: I Etched the Class Emblem for Class[J]. Chinese Journal of Chemical Education, 2025, 46(9): 28-33.
